org.eclipse.paho.mqttv5.client.MqttConnectionOptions Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright (c) 2009, 2017 IBM Corp.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
*
* The Eclipse Public License is available at
* https://www.eclipse.org/legal/epl-2.0
* and the Eclipse Distribution License is available at
* https://www.eclipse.org/org/documents/edl-v10.php
*
* Contributors:
* Dave Locke - initial API and implementation and/or initial documentation
* Ian Craggs - MQTT 3.1.1 support
* James Sutton - Automatic Reconnect & Offline Buffering
* James Sutton - MQTT v5
*/
package org.eclipse.paho.mqttv5.client;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import javax.net.SocketFactory;
import javax.net.ssl.HostnameVerifier;
import org.eclipse.paho.mqttv5.client.internal.NetworkModuleService;
import org.eclipse.paho.mqttv5.client.util.Debug;
import org.eclipse.paho.mqttv5.common.MqttMessage;
import org.eclipse.paho.mqttv5.common.packet.MqttProperties;
import org.eclipse.paho.mqttv5.common.packet.UserProperty;
import org.eclipse.paho.mqttv5.common.util.MqttTopicValidator;
/**
* Holds the set of options that control how the client connects to a server.
*
* Constructs a new {@link MqttConnectionOptions} object using the default
* values.
*
* The defaults are:
*
* - The keep alive interval is 60 seconds
* - Clean Session is true
* - The message delivery retry interval is 15 seconds
* - The connection timeout period is 30 seconds
* - No Will message is set
* - Automatic Reconnect is enabled, starting at 1 second and capped at two
* minutes
* - A standard SocketFactory is used
*
* More information about these values can be found in the setter methods.
*/
public class MqttConnectionOptions {
private static final String CLIENT_ID_PREFIX = "paho";
// Connection Behaviour Properties
private String[] serverURIs = null; // List of Servers to connect to in order
private boolean automaticReconnect = false; // Automatic Reconnect
private int automaticReconnectMinDelay = 1; // Time to wait before first automatic reconnection attempt in seconds.
private int automaticReconnectMaxDelay = 120; // Max time to wait for automatic reconnection attempts in seconds.
private boolean useSubscriptionIdentifiers = true; // Whether to automatically assign subscription identifiers.
private int keepAliveInterval = 60; // Keep Alive Interval
private int connectionTimeout = 30; // Connection timeout in seconds
private boolean httpsHostnameVerificationEnabled = true;
private int maxReconnectDelay = 128000;
private boolean sendReasonMessages = false;
public MqttProperties getConnectionProperties() {
MqttProperties connectionProperties = new MqttProperties();
connectionProperties.setSessionExpiryInterval(sessionExpiryInterval);
connectionProperties.setReceiveMaximum(receiveMaximum);
connectionProperties.setMaximumPacketSize(maximumPacketSize);
connectionProperties.setTopicAliasMaximum(topicAliasMaximum);
connectionProperties.setRequestResponseInfo(requestResponseInfo);
connectionProperties.setRequestProblemInfo(requestProblemInfo);
connectionProperties.setUserProperties(userProperties);
connectionProperties.setAuthenticationMethod(authMethod);
connectionProperties.setAuthenticationData(authData);
return connectionProperties;
}
public MqttProperties getWillMessageProperties() {
return willMessageProperties;
}
public void setWillMessageProperties(MqttProperties willMessageProperties) {
this.willMessageProperties = willMessageProperties;
}
MqttProperties willMessageProperties = new MqttProperties();
// Connection packet properties
private int mqttVersion = 5; // MQTT Version 5
private boolean cleanStart = true; // Clean Session
private String willDestination = null; // Will Topic
private MqttMessage willMessage = null; // Will Message
private String userName; // Username
private byte[] password; // Password
private Long sessionExpiryInterval = null; // The Session expiry Interval in seconds, null is the default of
// never.
private Integer receiveMaximum = null; // The Receive Maximum, null defaults to 65,535, cannot be 0.
private Long maximumPacketSize = null; // The Maximum packet size, null defaults to no limit.
private Integer topicAliasMaximum = null; // The Topic Alias Maximum, null defaults to 0.
private Boolean requestResponseInfo = null; // Request Response Information, null defaults to false.
private Boolean requestProblemInfo = null; // Request Problem Information, null defaults to true.
private List userProperties = null; // User Defined Properties.
private String authMethod = null; // Authentication Method, If null, Extended Authentication is not performed.
private byte[] authData = null; // Authentication Data.
// TLS Properties
private SocketFactory socketFactory; // SocketFactory to be used to connect
private Properties sslClientProps = null; // SSL Client Properties
private HostnameVerifier sslHostnameVerifier = null; // SSL Hostname Verifier
private Map customWebSocketHeaders;
// Client Operation Parameters
private int executorServiceTimeout = 1; // How long to wait in seconds when terminating the executor service.
/**
* Returns the MQTT version.
*
* @return the MQTT version.
*/
public int getMqttVersion() {
return mqttVersion;
}
/**
* Returns the user name to use for the connection.
*
* @return the user name to use for the connection.
*/
public String getUserName() {
return userName;
}
/**
* Sets the user name to use for the connection.
*
* @param userName
* The Username as a String
*/
public void setUserName(String userName) {
this.userName = userName;
}
/**
* Returns the password to use for the connection.
*
* @return the password to use for the connection.
*/
public byte[] getPassword() {
return password;
}
/**
* Sets the password to use for the connection.
*
* @param password
* A Char Array of the password
*/
public void setPassword(byte[] password) {
this.password = password;
}
/**
* Returns the topic to be used for last will and testament (LWT).
*
* @return the MqttTopic to use, or null if LWT is not set.
* @see #setWill(String, MqttMessage)
*/
public String getWillDestination() {
return willDestination;
}
/**
* Returns the message to be sent as last will and testament (LWT). The returned
* object is "read only". Calling any "setter" methods on the returned object
* will result in an IllegalStateException being thrown.
*
* @return the message to use, or null if LWT is not set.
*/
public MqttMessage getWillMessage() {
return willMessage;
}
/**
* Sets the "Last Will and Testament" (LWT) for the connection. In the event
* that this client unexpectedly looses it's connection to the server, the
* server will publish a message to itself using the supplied details.
*
* @param topic
* the topic to publish to.
* @param message
* the {@link MqttMessage} to send
*/
public void setWill(String topic, MqttMessage message) {
if (topic == null || message == null || message.getPayload() == null) {
throw new IllegalArgumentException();
}
MqttTopicValidator.validate(topic, false, true); // Wildcards are not allowed
this.willDestination = topic;
this.willMessage = message;
// Prevent any more changes to the will message
this.willMessage.setMutable(false);
}
/**
* Returns whether the client and server should remember state for the client
* across reconnects.
*
* @return the clean session flag
*/
public boolean isCleanStart() {
return this.cleanStart;
}
/**
* Sets whether the client and server should remember state across restarts and
* reconnects. If set to false, the server will retain the session state until
* either:
*
* - A new connection is made with the client and with the cleanStart flag set
* to true.
* - The Session expiry interval is exceeded after the network connection is
* closed, see {@link MqttConnectionOptions#setSessionExpiryInterval}
*
*
* If set to true, the server will immediately drop any existing session state
* for the given client and will initiate a new session.
*
* In order to implement QoS 1 and QoS 2 protocol flows the Client and Server
* need to associate state with the Client Identifier, this is referred to as
* the Session State. The Server also stores the subscriptions as part of the
* Session State.
*
* The session can continue across a sequence of Network Connections. It lasts
* as long as the latest Network Connection plus the Session Expiry Interval.
*
* The Session State in the Client consists of:
*
*
* - QoS 1 and QoS 2 messages which have been sent to the Server, but have not
* been completely acknowledged.
* - QoS 2 messages which have been received from the Server, but have not
* been completely acknowledged.
*
*
* The Session State in the Server consists of:
*
* - The existence of a Session, even if the rest of the Session State is
* empty.
* - The Clients subscriptions, including any Subscription Identifiers.
* - QoS 1 and QoS 2 messages which have been sent to the Client, but have not
* been completely acknowledged.
* - QoS 1 and QoS 2 messages pending transmission to the Client and
* OPTIONALLY QoS 0 messages pending transmission to the Client.
* - QoS 2 messages which have been received from the Client, but have not
* been completely acknowledged.The Will Message and the Will Delay
* Interval
* - If the Session is currently not connected, the time at which the Session
* will end and Session State will be discarded.
*
*
* Retained messages do not form part of the Session State in the Server, they
* are not deleted as a result of a Session ending.
*
*
*
* @param cleanStart
* Set to True to enable cleanSession
*/
public void setCleanStart(boolean cleanStart) {
this.cleanStart = cleanStart;
}
/**
* Returns the "keep alive" interval.
*
* @see #setKeepAliveInterval(int)
* @return the keep alive interval.
*/
public int getKeepAliveInterval() {
return keepAliveInterval;
}
/**
* Sets the "keep alive" interval. This value, measured in seconds, defines the
* maximum time interval between messages sent or received. It enables the
* client to detect if the server is no longer available, without having to wait
* for the TCP/IP timeout. The client will ensure that at least one message
* travels across the network within each keep alive period. In the absence of a
* data-related message during the time period, the client sends a very small
* "ping" message, which the server will acknowledge. A value of 0 disables
* keepalive processing in the client.
*
* The default value is 60 seconds
*
*
* @param keepAliveInterval
* the interval, measured in seconds, must be >= 0.
* @throws IllegalArgumentException
* if the keepAliveInterval was invalid
*/
public void setKeepAliveInterval(int keepAliveInterval) {
if (keepAliveInterval < 0) {
throw new IllegalArgumentException();
}
this.keepAliveInterval = keepAliveInterval;
}
/**
* Returns the connection timeout value.
*
* @see #setConnectionTimeout(int)
* @return the connection timeout value.
*/
public int getConnectionTimeout() {
return connectionTimeout;
}
/**
* Sets the connection timeout value. This value, measured in seconds, defines
* the maximum time interval the client will wait for the network connection to
* the MQTT server to be established. The default timeout is 30 seconds. A value
* of 0 disables timeout processing meaning the client will wait until the
* network connection is made successfully or fails.
*
* @param connectionTimeout
* the timeout value, measured in seconds. It must be >0;
*/
public void setConnectionTimeout(int connectionTimeout) {
if (connectionTimeout < 0) {
throw new IllegalArgumentException();
}
this.connectionTimeout = connectionTimeout;
}
/**
* Get the maximum time (in millis) to wait between reconnects
*
* @return Get the maximum time (in millis) to wait between reconnects
*/
public int getMaxReconnectDelay() {
return maxReconnectDelay;
}
/**
* Set the maximum time to wait between reconnects
*
* @param maxReconnectDelay
* the duration (in millis)
*/
public void setMaxReconnectDelay(int maxReconnectDelay) {
this.maxReconnectDelay = maxReconnectDelay;
}
/**
* Return a list of serverURIs the client may connect to
*
* @return the serverURIs or null if not set
*/
public String[] getServerURIs() {
return serverURIs;
}
/**
* Set a list of one or more serverURIs the client may connect to.
*
* Each serverURI specifies the address of a server that the client
* may connect to. Two types of connection are supported tcp:// for
* a TCP connection and ssl:// for a TCP connection secured by
* SSL/TLS. For example:
*
* tcp://localhost:1883ssl://localhost:8883
* If the port is not specified, it will default to 1883 for
* tcp://" URIs, and 8883 for ssl:// URIs.
*
* If serverURIs is set then it overrides the serverURI parameter passed in on
* the constructor of the MQTT client.
*
* When an attempt to connect is initiated the client will start with the first
* serverURI in the list and work through the list until a connection is
* established with a server. If a connection cannot be made to any of the
* servers then the connect attempt fails.
*
* Specifying a list of servers that a client may connect to has several uses:
*
* - High Availability and reliable message delivery
*
* Some MQTT servers support a high availability feature where two or more
* "equal" MQTT servers share state. An MQTT client can connect to any of the
* "equal" servers and be assured that messages are reliably delivered and
* durable subscriptions are maintained no matter which server the client
* connects to.
*
*
* The cleanStart flag must be set to false if durable subscriptions and/or
* reliable message delivery is required.
*
*
* - Hunt List
*
* A set of servers may be specified that are not "equal" (as in the high
* availability option). As no state is shared across the servers reliable
* message delivery and durable subscriptions are not valid. The cleanStart flag
* must be set to true if the hunt list mode is used
*
*
*
*
* @param serverURIs
* to be used by the client
*/
public void setServerURIs(String[] serverURIs) {
for (String serverURI : serverURIs) {
NetworkModuleService.validateURI(serverURI);
}
this.serverURIs = serverURIs.clone();
}
/**
* Returns whether the client will automatically attempt to reconnect to the
* server if the connection is lost
*
* @return the automatic reconnection flag.
*/
public boolean isAutomaticReconnect() {
return automaticReconnect;
}
/**
* Sets whether the client will automatically attempt to reconnect to the server
* if the connection is lost.
*
* - If set to false, the client will not attempt to automatically reconnect
* to the server in the event that the connection is lost.
* - If set to true, in the event that the connection is lost, the client will
* attempt to reconnect to the server. It will initially wait 1 second before it
* attempts to reconnect, for every failed reconnect attempt, the delay will
* double until it is at 2 minutes at which point the delay will stay at 2
* minutes.
*
*
* You can change the Minimum and Maximum delays by using
* {@link #setAutomaticReconnectDelay(int, int)}
*
* This Defaults to true
*
* @param automaticReconnect
* If set to True, Automatic Reconnect will be enabled
*/
public void setAutomaticReconnect(boolean automaticReconnect) {
this.automaticReconnect = automaticReconnect;
}
/**
* Sets the Minimum and Maximum delays used when attempting to automatically
* reconnect.
*
* @param minDelay
* the minimum delay to wait before attempting to reconnect in
* seconds, defaults to 1 second.
* @param maxDelay
* the maximum delay to wait before attempting to reconnect in
* seconds, defaults to 120 seconds.
*/
public void setAutomaticReconnectDelay(int minDelay, int maxDelay) {
this.automaticReconnectMinDelay = minDelay;
this.automaticReconnectMaxDelay = maxDelay;
}
/**
* Returns the minimum number of seconds to wait before attempting to
* automatically reconnect.
*
* @return the automatic reconnect minimum delay in seconds.
*/
public int getAutomaticReconnectMinDelay() {
return automaticReconnectMinDelay;
}
/**
* Returns the maximum number of seconds to wait before attempting to
* automatically reconnect.
*
* @return the automatic reconnect maximum delay in seconds.
*/
public int getAutomaticReconnectMaxDelay() {
return automaticReconnectMaxDelay;
}
/**
* Returns the Session Expiry Interval. If null, this means the
* session will not expire.
*
* @return the Session Expiry Interval in seconds.
*/
public Long getSessionExpiryInterval() {
return sessionExpiryInterval;
}
/**
* Sets the Session Expiry Interval. This value, measured in seconds, defines
* the maximum time that the broker will maintain the session for once the
* client disconnects. Clients should only connect with a long Session Expiry
* interval if they intend to connect to the server at some later point in time.
*
*
* - By default this value is null and so will not be sent, in this case, the
* session will not expire.
* - If a 0 is sent, the session will end immediately once the Network
* Connection is closed.
*
*
* When the client has determined that it has no longer any use for the session,
* it should disconnect with a Session Expiry Interval set to 0.
*
* @param sessionExpiryInterval
* The Session Expiry Interval in seconds.
*/
public void setSessionExpiryInterval(Long sessionExpiryInterval) {
this.sessionExpiryInterval = sessionExpiryInterval;
}
/**
* Returns the Receive Maximum value. If null, it will default to
* 65,535.
*
* @return the Receive Maximum
*/
public Integer getReceiveMaximum() {
return receiveMaximum;
}
/**
* Sets the Receive Maximum. This value represents the limit of QoS 1 and QoS 2
* publications that the client is willing to process concurrently. There is no
* mechanism to limit the number of QoS 0 publications that the Server might try
* to send.
*
* - If set to
null then this value defaults to 65,535.
* - If set, the minimum value for this property is 1.
* - The maximum value for this property is 65,535.
*
*
* @param receiveMaximum
* the Receive Maximum.
*/
public void setReceiveMaximum(Integer receiveMaximum) {
if (receiveMaximum != null && (receiveMaximum == 0 || receiveMaximum > 65535)) {
throw new IllegalArgumentException();
}
this.receiveMaximum = receiveMaximum;
}
/**
* Returns the Maximum Packet Size. If null, no limit is imposed.
*
* @return the Maximum Packet Size in bytes.
*/
public Long getMaximumPacketSize() {
return maximumPacketSize;
}
/**
* Sets the Maximum Packet Size. This value represents the Maximum Packet Size
* the client is willing to accept.
*
*
* - If set to
null then no limit is imposed beyond the
* limitations of the protocol.
* - If set, the minimum value for this property is 1.
* - The maximum value for this property is 2,684,354,656.
*
*
* @param maximumPacketSize
* The Maximum packet size.
*/
public void setMaximumPacketSize(Long maximumPacketSize) {
this.maximumPacketSize = maximumPacketSize;
}
/**
* Returns the Topic Alias Maximum. If null, the default value is
* 0.
*
* @return the Topic Alias Maximum.
*/
public Integer getTopicAliasMaximum() {
return topicAliasMaximum;
}
/**
* Sets the Topic Alias Maximum. This value if present represents the highest
* value that the Client will accept as a Topic Alias sent by the Server.
*
*
* - If set to
null, then it will default to to 0.
* - If set to 0, the Client will not accept any Topic Aliases
* - The Maximum value for this property is 65535.
*
*
* @param topicAliasMaximum
* the Topic Alias Maximum
*/
public void setTopicAliasMaximum(Integer topicAliasMaximum) {
if (topicAliasMaximum != null && topicAliasMaximum > 65535) {
throw new IllegalArgumentException();
}
this.topicAliasMaximum = topicAliasMaximum;
}
/**
* Returns the Request Response Info flag. If null, the default
* value is false.
*
* @return The Request Response Info Flag.
*/
public Boolean getRequestResponseInfo() {
return requestResponseInfo;
}
/**
* Sets the Request Response Info Flag.
*
* - If set to
null, then it will default to false.
* - If set to false, the server will not return any response information in
* the CONNACK.
* - If set to true, the server MAY return response information in the
* CONNACK.
*
*
* @param requestResponseInfo
* The Request Response Info Flag.
*/
public void setRequestResponseInfo(boolean requestResponseInfo) {
this.requestResponseInfo = requestResponseInfo;
}
/**
* Returns the Request Problem Info flag. If null, the default
* value is true.
*
* @return the Request Problem Info flag.
*/
public Boolean getRequestProblemInfo() {
return requestProblemInfo;
}
/**
* Sets the Request Problem Info flag.
*
* - If set to
null, then it will default to true.
* - If set to false, the server MAY return a Reason String or User Properties
* on a CONNACK or DISCONNECT, but must not send a Reason String or User
* Properties on any packet other than PUBLISH, CONNACK or DISCONNECT.
* - If set to true, the server MAY return a Reason String or User Properties
* on any packet where it is allowed.
*
*
* @param requestProblemInfo
* The Flag to request problem information.
*/
public void setRequestProblemInfo(boolean requestProblemInfo) {
this.requestProblemInfo = requestProblemInfo;
}
/**
* Returns the User Properties.
*
* @return the User Properties.
*/
public List getUserProperties() {
return userProperties;
}
/**
* Sets the User Properties. A User Property is a UTF-8 String Pair, the same
* name is allowed to appear more than once.
*
* @param userProperties
* User Properties
*/
public void setUserProperties(List userProperties) {
this.userProperties = userProperties;
}
/**
* Returns the Authentication Method. If null, extended
* authentication is not performed.
*
* @return the Authentication Method.
*/
public String getAuthMethod() {
return authMethod;
}
/**
* Sets the Authentication Method. If set, this value contains the name of the
* authentication method to be used for extended authentication.
*
* If null, extended authentication is not performed.
*
* @param authMethod
* The Authentication Method.
*/
public void setAuthMethod(String authMethod) {
this.authMethod = authMethod;
}
/**
* Returns the Authentication Data.
*
* @return the Authentication Data.
*/
public byte[] getAuthData() {
return authData;
}
/**
* Sets the Authentication Data. If set, this byte array contains the extended
* authentication data, defined by the Authenticated Method. It is a protocol
* error to include Authentication Data if there is no Authentication Method.
*
* @param authData
* The Authentication Data
*/
public void setAuthData(byte[] authData) {
this.authData = authData;
}
/**
* Returns the socket factory that will be used when connecting, or
* null if one has not been set.
*
* @return The Socket Factory
*/
public SocketFactory getSocketFactory() {
return socketFactory;
}
/**
* Sets the SocketFactory to use. This allows an application to
* apply its own policies around the creation of network sockets. If using an
* SSL connection, an SSLSocketFactory can be used to supply
* application-specific security settings.
*
* @param socketFactory
* the factory to use.
*/
public void setSocketFactory(SocketFactory socketFactory) {
this.socketFactory = socketFactory;
}
/**
* Returns the SSL properties for the connection.
*
* @return the properties for the SSL connection
*/
public Properties getSSLProperties() {
return sslClientProps;
}
/**
* Sets the SSL properties for the connection.
*
* Note that these properties are only valid if an implementation of the Java
* Secure Socket Extensions (JSSE) is available. These properties are
* not used if a SocketFactory has been set using
* {@link #setSocketFactory(SocketFactory)}. The following properties can be
* used:
*
*
* - com.ibm.ssl.protocol
* - One of: SSL, SSLv3, TLS, TLSv1, SSL_TLS.
* - com.ibm.ssl.contextProvider
*
- Underlying JSSE provider. For example "IBMJSSE2" or "SunJSSE"
*
* - com.ibm.ssl.keyStore
* - The name of the file that contains the KeyStore object that you want the
* KeyManager to use. For example /mydir/etc/key.p12
*
* - com.ibm.ssl.keyStorePassword
* - The password for the KeyStore object that you want the KeyManager to use.
* The password can either be in plain-text, or may be obfuscated using the
* static method:
*
com.ibm.micro.security.Password.obfuscate(char[] password). This
* obfuscates the password using a simple and insecure XOR and Base64 encoding
* mechanism. Note that this is only a simple scrambler to obfuscate clear-text
* passwords.
*
* - com.ibm.ssl.keyStoreType
* - Type of key store, for example "PKCS12", "JKS", or "JCEKS".
*
* - com.ibm.ssl.keyStoreProvider
* - Key store provider, for example "IBMJCE" or "IBMJCEFIPS".
*
* - com.ibm.ssl.trustStore
* - The name of the file that contains the KeyStore object that you want the
* TrustManager to use.
*
* - com.ibm.ssl.trustStorePassword
* - The password for the TrustStore object that you want the TrustManager to
* use. The password can either be in plain-text, or may be obfuscated using the
* static method:
*
com.ibm.micro.security.Password.obfuscate(char[] password). This
* obfuscates the password using a simple and insecure XOR and Base64 encoding
* mechanism. Note that this is only a simple scrambler to obfuscate clear-text
* passwords.
*
* - com.ibm.ssl.trustStoreType
* - The type of KeyStore object that you want the default TrustManager to
* use. Same possible values as "keyStoreType".
*
* - com.ibm.ssl.trustStoreProvider
* - Trust store provider, for example "IBMJCE" or "IBMJCEFIPS".
*
* - com.ibm.ssl.enabledCipherSuites
* - A list of which ciphers are enabled. Values are dependent on the
* provider, for example:
* SSL_RSA_WITH_AES_128_CBC_SHA;SSL_RSA_WITH_3DES_EDE_CBC_SHA.
*
* - com.ibm.ssl.keyManager
* - Sets the algorithm that will be used to instantiate a KeyManagerFactory
* object instead of using the default algorithm available in the platform.
* Example values: "IbmX509" or "IBMJ9X509".
*
* - com.ibm.ssl.trustManager
* - Sets the algorithm that will be used to instantiate a TrustManagerFactory
* object instead of using the default algorithm available in the platform.
* Example values: "PKIX" or "IBMJ9X509".
*
*
* @param props
* The SSL {@link Properties}
*/
public void setSSLProperties(Properties props) {
this.sslClientProps = props;
}
/**
* Returns the HostnameVerifier for the SSL connection.
*
* @return the HostnameVerifier for the SSL connection
*/
public HostnameVerifier getSSLHostnameVerifier() {
return sslHostnameVerifier;
}
/**
* Sets the HostnameVerifier for the SSL connection. Note that it will be used
* after handshake on a connection and you should do actions by yourserlf when
* hostname is verified error.
*
* There is no default HostnameVerifier
*
*
* @param hostnameVerifier
* the {@link HostnameVerifier}
*/
public void setSSLHostnameVerifier(HostnameVerifier hostnameVerifier) {
this.sslHostnameVerifier = hostnameVerifier;
}
/**
* Returns whether to automatically assign subscription identifiers when
* subscribing to a topic.
*
* @return if automatic assignment of subscription identifiers is enabled.
*/
public boolean useSubscriptionIdentifiers() {
return useSubscriptionIdentifiers;
}
/**
* Sets whether to automatically assign subscription identifiers when
* subscribing to a topic. This will mean that if a subscription has a callback
* associated with it then it is guaranteed to be called when an incoming
* message has the correct subscription ID embedded. If disabled, then the
* client will do best effort topic matching with all callbacks, however this
* might result in an incorrect callback being called if there are multiple
* subscriptions to topics using a combination of wildcards.
*
* @param useSubscriptionIdentifiers
* Whether to enable automatic assignment of subscription
* identifiers.
*/
public void setUseSubscriptionIdentifiers(boolean useSubscriptionIdentifiers) {
this.useSubscriptionIdentifiers = useSubscriptionIdentifiers;
}
public boolean isHttpsHostnameVerificationEnabled() {
return httpsHostnameVerificationEnabled;
}
public void setHttpsHostnameVerificationEnabled(boolean httpsHostnameVerificationEnabled) {
this.httpsHostnameVerificationEnabled = httpsHostnameVerificationEnabled;
}
/**
* @return The Debug Properties
*/
public Properties getDebug() {
final String strNull = "null";
Properties p = new Properties();
p.put("MqttVersion", getMqttVersion());
p.put("CleanStart", Boolean.valueOf(isCleanStart()));
p.put("ConTimeout", getConnectionTimeout());
p.put("KeepAliveInterval", getKeepAliveInterval());
p.put("UserName", (getUserName() == null) ? strNull : getUserName());
p.put("WillDestination", (getWillDestination() == null) ? strNull : getWillDestination());
if (getSocketFactory() == null) {
p.put("SocketFactory", strNull);
} else {
p.put("SocketFactory", getSocketFactory());
}
if (getSSLProperties() == null) {
p.put("SSLProperties", strNull);
} else {
p.put("SSLProperties", getSSLProperties());
}
return p;
}
/**
* Sets the Custom WebSocket Headers for the WebSocket Connection.
*
* @param headers
* The custom websocket headers {@link Properties}
*/
public void setCustomWebSocketHeaders(Map headers) {
this.customWebSocketHeaders = Collections.unmodifiableMap(headers);
}
public Map getCustomWebSocketHeaders() {
return customWebSocketHeaders;
}
public String toString() {
return Debug.dumpProperties(getDebug(), "Connection options");
}
public boolean isSendReasonMessages() {
return sendReasonMessages;
}
public void setSendReasonMessages(boolean sendReasonMessages) {
this.sendReasonMessages = sendReasonMessages;
}
public int getExecutorServiceTimeout() {
return executorServiceTimeout;
}
/**
* Set the time in seconds that the executor service should wait when
* terminating before forcefully terminating. It is not recommended to change
* this value unless you are absolutely sure that you need to.
*
* @param executorServiceTimeout the time in seconds to wait when shutting down.Ï
*/
public void setExecutorServiceTimeout(int executorServiceTimeout) {
this.executorServiceTimeout = executorServiceTimeout;
}
}
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